I have an 96 SLE SC with about 155K on it. It is setting off 2 codes I am told 303 and or 301. Symptoms are flucuating idle when warm and a slight misfire. It runs out ok but vibrates a bit. Is this a plug or coil or wire?

By the way, the production on the car is one of 367 and one of 38 with the SC and power top. This has to be one of my top 5 cars ever. Pretty trouble free up to now. I ordered it in Nov 05 and it was delivered in Jan 06. I remember the dealer tried to talk me out of the engine option as he said that he could get a base version the next day. What really sold me is an old High Performance Pontiac magazine story of a guy in NJ getting mid 14s out of it stock when brand new.

Hmmm being 96 those aren't listed in Techinfo on the 97 page. Do you remember the names of the codes?

And BTW..You meant you ordered the car in 95 and got it in 96 right.